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Cyst of maxillary sinus (True cyst (surgical ciliated cyst (Cause&…
Cyst of maxillary sinus
Pseudocyst
Antral Pseudocyst
Cause&factor
เกิดที่ sub epithelial
Odontogenic infection
Irritate sinus lining
Clinical features
Asymptomatic
Headache
Facial sinus pain
Nasal obstruction
Radiographic
Dome-shaped
Radiopaque
Histopathology
Exudate
พื้น sinus อยู่บน edematous CNT
True cyst
surgical ciliated cyst
Cause&factor
Trauma
Surgery
Caldwell-Luc operation
Clinical features
Large
Perforated sinus wall
Histopathology
ciliated pseudostratified columnar epithelium
squamous epithelium with mucous cells
Sinus mucocele
Cause&factor
Obstruction of sinus ostium
Increase intralumina pressure
Distend wall of sinus
Clinical features
Cloudy
Erode bone
Sinus wall become thin
Histopathology
ciliated pseudostratified columnar epithelium
Sinus retention cyst
Cause&factor
Partial block seromucous gland duct
located around the ostium/antral polyps
Clinical features
Small
detectable radiographic changes
Histopathology
focal dilation of a duct
thick mucus,
chronic inflammatory cells.